国务院(Department of State, DOS)对外发布的 [https://travel.state.gov/content/dam/visas/Statistics/Immigrant-Statistics/Immigrant%20Visa%20Control%20System_operation%20of.pdf The Operation of the Immigrant Numerical Control System] 一文,描述了排期表的指定方法。以下是对DOS官网这篇文档的总结: | 国务院(Department of State, DOS)对外发布的 [https://travel.state.gov/content/dam/visas/Statistics/Immigrant-Statistics/Immigrant%20Visa%20Control%20System_operation%20of.pdf The Operation of the Immigrant Numerical Control System] 一文,描述了排期表的指定方法。以下是对DOS官网这篇文档的总结: |